The extensive use of passive safety systems for decay heat removal proposed in some evolutionary LWR design requires an extension of the validation domain of the T/H advanced codes for the safety analysis of the future reactors. A task of the co-operation between ENEA (Italy) and CEA (France) on advanced reactors is specifically devoted to assess the capability of CATHARE (T/H best estimate French code) to simulate such systems. Within this framework ENEA and CEA took part in the CSNI International Standard Problem (ISP) 42 based on a test in the PANDA facility (PSI, CH). Phases A, C and D of the ISP were chosen by ENEA and CEA for CATHARE pre- and post-test calculations, since these phases dealt with issues already object of previous collaborations on the CATHARE assessment: pool immersed heat exchangers operating at low pressure, steam condensation in presence of non-condensable gases in tubes, coupling between primary system and containment. The results here presented concern the second part of the ISP42 performed as a post-test analysis, where the analytical model used for the first part, conducted as a double-blind exercise, has been substantially improved.
|Titolo:||Simulation of the PANDA Test for the ISP42 Using the CATHARE Code|
|Data di pubblicazione:||8-apr-2001|
|Appare nelle tipologie:||4.1 Contributo in Atti di convegno|